diff options
Diffstat (limited to 'src/base/ftcalc.c')
| -rw-r--r-- | src/base/ftcalc.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c index 3892fab..2aeea04 100644 --- a/src/base/ftcalc.c +++ b/src/base/ftcalc.c @@ -4,7 +4,7 @@ /* */ /* Arithmetic computations (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008 by */ +/* Copyright 1996-2006, 2008, 2012 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -307,7 +307,7 @@ q <<= 1; r |= lo >> 31; - if ( r >= (FT_UInt32)y ) + if ( r >= y ) { r -= y; q |= 1; @@ -373,7 +373,7 @@ if ( a <= 46340L && b <= 46340L && c <= 176095L && c > 0 ) a = ( a * b + ( c >> 1 ) ) / c; - else if ( c > 0 ) + else if ( (FT_Int32)c > 0 ) { FT_Int64 temp, temp2; @@ -412,7 +412,7 @@ if ( a <= 46340L && b <= 46340L && c > 0 ) a = a * b / c; - else if ( c > 0 ) + else if ( (FT_Int32)c > 0 ) { FT_Int64 temp; @@ -464,7 +464,7 @@ * Unfortunately, it doesn't work (at least not portably). * * It makes the assumption that right-shift on a negative signed value - * fills the leftmost bits by copying the sign bit. This is wrong. + * fills the leftmost bits by copying the sign bit. This is wrong. * According to K&R 2nd ed, section `A7.8 Shift Operators' on page 206, * the result of right-shift of a negative signed value is * implementation-defined. At least one implementation fills the @@ -544,7 +544,7 @@ s = (FT_Int32)a; a = FT_ABS( a ); s ^= (FT_Int32)b; b = FT_ABS( b ); - if ( b == 0 ) + if ( (FT_UInt32)b == 0 ) { /* check for division by 0 */ q = (FT_UInt32)0x7FFFFFFFL; @@ -552,15 +552,16 @@ else if ( ( a >> 16 ) == 0 ) { /* compute result directly */ - q = (FT_UInt32)( (a << 16) + (b >> 1) ) / (FT_UInt32)b; + q = (FT_UInt32)( ( a << 16 ) + ( b >> 1 ) ) / (FT_UInt32)b; } else { /* we need more bits; we have to do it by hand */ FT_Int64 temp, temp2; - temp.hi = (FT_Int32) (a >> 16); - temp.lo = (FT_UInt32)(a << 16); + + temp.hi = (FT_Int32) ( a >> 16 ); + temp.lo = (FT_UInt32)( a << 16 ); temp2.hi = 0; temp2.lo = (FT_UInt32)( b >> 1 ); FT_Add64( &temp, &temp2, &temp ); |